<template>
    <div>
        <div class="search">
            <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音">
        </div>
        <div class="search-content" ref="search" v-show="keyword">
            <ul>
                <li v-for="item of list" 
                    class="search-item border-bottom" 
                    :key="item.id"
                    @click="handleCityClick(item.name)"
                >{{item.name}}</li>
                <li class="search-item border-bottom" v-show="hasNoData">没有找到匹配数据</li>
            </ul>
        </div>
    </div>
</template>

<script>
    import Bscroll from 'better-scroll'
    import {mapMutations} from 'vuex'

    export default{
        name:"CitySearch",
        data(){
            return {
                keyword:'',
                list:[],
                timer:null
            }
        },
        props:{
            cites:Object
        },
        watch:{
            keyword(){
                if(this.timer){
                    clearTimeout(this.timer);
                }
                if(!this.keyword){
                    this.list=[];
                    return;
                }
                this.timer=setTimeout(()=>{
                    const result=[];
                    var that=this;
                    for(let i in that.cites){
                        this.cites[i].forEach(function(value){
                            if(value.spell.indexOf(that.keyword)>-1||value.name.indexOf(that.keyword)>-1){
                                result.push(value);
                            }
                        })
                    }
                    this.list=result;
                },100)
            }
        },
        mounted(){
            this.scroll=new Bscroll(this.$refs.search);   // dom元素
        },
        computed:{
            hasNoData(){
                return !this.list.length;
            }
        },
        methods:{
            handleCityClick(city){
                // this.$store.commit("changeCity",city);
                this.changeCity(city);
                this.$router.push('/');
            },
            ...mapMutations(['changeCity'])
        }
    }
</script>

<style lang="stylus" scoped>
    @import "~styles/varibles.styl"
    .search
        height:.72rem
        background-color:$bgColor
        padding:0 .1rem
        font-size:12px
        .search-input
            box-sizing:border-box
            width:100%
            height:.62rem
            line-height:.62rem
            text-align:center
            border-radius:.06rem
            color:#666
            padding:0 .1rem
            outline:none
            border:none
    .search-content
        z-index:1
        overflow:hidden
        position:absolute
        top:1.58rem
        left:0
        right:0
        bottom:0
        font-size:12px
        background:#eee
        .search-item
            line-height:.62rem
            padding-left:.2rem 
            color:#666
            background:#fff



</style>